Controller attachment.



G. c.` LUDGATE. CONTROLLER ATTACHMENT.

APPLIOATIONIILED JUNE 3, 1 913.

1,083,842. Panfed Jane, 1914.

wiftwmo @6U-7:96 @f @M mmm@ CONTROLLER ATTACHMENT.

Specicaton of Letters Patent.

PatentedJan.6,1914. l X

Application filed June 3, 1913.

Serial No. 771,510.

To all whom, it may concern is had by extending the fluid pressure lineel Be it known that I, GEORGE C. LUDGATE, to that side of the car on which the con a citizen of the United States, residing at troller box dislocated and thence upwardlv A Brooklyn, in the county of Kings and State over one side of the controller box and to the 60 of New York, have invented new and useful position shown.

Improvements in Controller Attachments, The controller herein indicated generally of which the following is a specification. by f includes a. casing 5 and a handle 6 de'- The general object of the invention is to tachably connected to mechanism which opimprove the mechanism for controlling the crates the element c when thehandle is 65 motivetluid and the air brakes of a car in turned in one direction from the neutral point of requiring the driwer to use only one posit-ion indicated by full lines in Fig. 3 hand inetfecting the operations of cutting and which also operates the part marked oil' the power and applying the brakes; and when the handle is turned in the opposite in reducing the time ordinarily required to direction from the neutral position indi- 70 effect the cutting oil of the motive tluid and cated by full line-s in Fig. 3. A simple and an application of the fluid pressure brakes. efficient structure for effecting these results And to this' end the invention resides in aris shown in Figs. 'l to 3 inclusive, where it ranging relatively near to each other those will be seen that the parts a and b eXtend parts of the motive iuid and fluid pressure into the casing 5 and each is provided at its 75 brake lines which are ordinarily associated upper end with a horizontally disposed with their respective controlling devices, toothed wheel 7. An interrupted tooth and providing a movable controlling device wheel 8 is interposed between the wheels including an operating handle which, when '7 7 and is fast-upon a stub shaft 9 which moved in one direction from a neutral point, extends through the top of the casing and 80 will. control the passage of motive fluid to is suitably adapted for detachable connecthe motor and when moved in another direc-` tion with the operating handle 6. Now by tion from `the said neutral point, will con-j virtue of the interruption of the teeth in the trol the brake operating fluid. wheel 8 and the disposing of the said wheel Other objects will appearl and be better so that its end teeth will barely bein eng5 v9.0 understood from that embodiment ot my ingagement with the teeth of the wheels 7 7 vention of which the following is a speciiicawhen the operating handle is in the neutral tion, reference being had to the accompanyposit-ion as shown in Fig. l, it will be maniing drawings forming part hereof, in fest that when the said handle is turned which A away from the observer and to the left in 90 Figure 1 is a plan of the invent-ion show- Fig. l from the position shown, the wheel S ing it used in connection with the controller will effect the turning of the wheel 7 of the boX `of an ordinary electric car.: Fig. 2 is a part a but the wheel 7 of the part Z1 will detail side elevation partly in vertical cross remain passive by virtue of the toothless section. Fig. 3 is a detail inverted plan part of the wheel S turning in the presence 95 40 View on the line 3-3 of Fig. 2. of the teeth of the. wheel `7 of the part Z). The part which is operated to admit or Continued turn-ing of the handle .in this 'out oli' the supply of motive 'fluid from a direction admits the motive uid to the mosuitable source' to the motor, is indicated tor a, in volume indicated by the pointer l0 generally by a. In the embodiment s own and one of the indicator marks 11 on the top 10Q this part a corresponds to the usual movable ot the casing 5, asshown by dotted lines 1n element which is operated by the controller Fig. l. r I handle for closin the electric circuit of the Now it will be observed that any desired motor of an ordinary electric railway oar. fractional part of the full amount of motive The part marked Z corresponds to the. stem power may be admitted to the motor wur-r 10.5 of what is known as 'the engineers valve in this mechanism without' disturbing the neu- `a fluidv pressure brake system. As will be tral position of the fluid pressure brake observed the parts .c and b are relatively` mechanism and in order to further indicate near toeach other and'in the embodiment to the operator when the motor is operating shownA are arranged over the'top c ot' the at full speed and at the Sametime to pre- 11e controller 'box d. This kbringing of thepart vent overthrowof the hF ndle 6 and a coin i?) 'into relatively clase relation to the part a sequent operation of the uid pressure brake system,y a stop, 12 is I proided-'ana as 4shown inFigs '2 and 3. is in the form ofa I stud which projects upwardly from n su`i`t-v 11e At'the 'ends' of such tui-nin movements the able supportand into a 'curved groove 13 in the lower `face of the Wheel 8. y This groove 18 isof such length as will' admito'f turning the operatingr handle?) in* opposite directions :throng arcs of, approximately one hundred'end eight)7 degrees from theneu- -tra'l .point indicatedl by. full lines in Fig. f3.

end-Walls ofthe groovejwil be brought into Contact with the stop'12i Now upon turn? .ing the handle ,6 towa'rdv thejobservjer and "to the left in Fig; 1rom the position shown,

the Awheel/ of thel partb hwill be operated,-

' stop and ythis Withouteil'ecting the part' a.

vWhile owing-to the toothlesspart ofl'the Wheel 8 the vWheel? of lthe pert will rew N, 2 l mentum. oi' lthe carin making anerdmnry New it will be observedthat in making" en einerfrencrstoi and with the .motor foi n y 1 b ing at full'speegl, the handle in Inovingfroni the position it occupies when the motor is, going at fu1l speed. first passes .the i'ie 'utrnl point before the air brake mechanism be# cornes operative so 'that the operationA of.l

` first?v cutting oil themotive fluid vbefore :tp-

"plying thebrek'es ispositively assured.

Referring new to Fig. 2a coil springli Ais larranged in such relation to the 4opereting mechanism hereinbefore described as hold the wheel 8 normally insueh position as will electthe full opening of the engi- When the controller 6 is in neutral position -as shown lin'.l `ig. 1, the spring '14" Will be tensioned,v whereby, and upon release ofthe controller v6, the Wheel 8 Will turn under the` action oil the spring 14 until such spring is relaxed t `which time the. engineers `Va.lve

will be Wide open or in the positionit,` will occupy when an emergency application of the brakes is had. l .i

-Nowwith this construction it is manifest that the operator must, under normal conditions orfwhen the car is running7 maintain 4his hand on theKeontroller 6 since the r'emovnl of his handeither through accident or inadvertence will remove lthe resistancev j'tofthe eetion of the `spring 14,*.Wh1ch under such condition, will -operateeutomatically as before described. ,A What is'clsnmed as new 1s:

In combination with the engineers valve of :1 iuij'd pressure brake system and :in element for controlling the admission of motive fluid Lto e motor; of e.' toothed Wheel cenn'ee'tedte` the vengineers valve, :i second Itoothed Wheel. 'connected to the said element,

enf interrupted gear wheel interposed between said toothed. Wheels and adapted when turned' inr either direction :to mesh. with the said toothedj Wheels: successively,' and an operating yhand-le for 'turningsaid interrupted gear Wheel.l

l In .testimony whereof signture -vin:presence,y of'two Witnesses.

eoY

Copies of this patent may be obtained for ve cents each, by addressing .the Commissioner of Patents,

i V Washington, D. C. l 

